|
Thus increasing the traffic throughput. Ghost-drivers (driving in the wrong direction on a highway) are also detected. The system can be set up on highway sections (up to 6 lanes multi-lane free flow), rural roads, and city roads, in tunnels and also for temporary construction sites.
Vehicles are classified on entry of the section and an image of the license plate is taken together with a time stamp. On leaving the monitored section, the same is repeated and images are compared in order to determine average section speed.
Optionally speed limit information, based on weather conditions and classification can be displayed via VMS (Variable Message Sign) to vehicles so drivers can be notified.
Classification is achieved via EFKON’s TOM 2000 (Traffic Observation Module) laser profile scanner which produces a three-dimensional profile of every vehicle.
Entry and exit points of the controlled section are equipped with image acq and data storage modules, which generate traffic events, consisting of image data, timestamp, GPS position a.s.o.
After passing the enforced section, the timestamps of entry and exit traffic event of each vehicle will be used to calculate average speed by the roadside server. Event data will be used to generate evidential records.
EFKONs sections control system is currently one of the biggest operations in regard to images processing and optical character recognition for license plate reading. Annually approx. 80.000.000 image are processed at the installation in Vienna.
|
